I want that glib and oily art,
To speak and purpose not.

– William Shakespeare

King Lear, Act 1, Scene 1. Cordelia attempts to reason with her angry father who has disinherited her for refusing his demand to flatter him like her sisters. She says she lacks the glib art of speaking empty and words of flattery. When she wants to do something she does it instead of talking about it – "what I well intend, I’ll do ‘t before I speak."